Static Compression vs Dynamic Compression

[GT63]

Is your USB cable shielded ? I can't imagine you not being being able to get a shielded cable (or having gotten one) in your part of the country but if you need one I have one. I'll loan it to you for the cost of the ride. Also suggest a quick compression check & leak down test. That will show the offending cylinder(s).
Flat tappets unfortunately will/do go away quickly no matter what you do. Rollers are the way to go. If the heat hasn't warped your cylinder heads (not really feeling they are) then a cam w roller lifters should be under a grand and everyone is happy. BTW what heads are you looking at ?

Merry Christmas or what ever is appropriate and a Happy New Year, John

The USB cable came from Accel and is shielded, plus I added Ferrite blocks to each end.

the heads I'm considering are the Air Flow Research 195's with the 65cc Chambers. They come highly recommended.

 

[GT63]

Dawm....that motor looks purty!!!! :spy:

Note the Gauges, One is for Fuel Pressure, the other is for Vacuum\Boost. Fuel pressure is set at 45psi per Accel instructions. Vacuum was 12-15 when the carbs were on it.